JPH0238250B2 - - Google Patents

Info

Publication number
JPH0238250B2
JPH0238250B2 JP58069900A JP6990083A JPH0238250B2 JP H0238250 B2 JPH0238250 B2 JP H0238250B2 JP 58069900 A JP58069900 A JP 58069900A JP 6990083 A JP6990083 A JP 6990083A JP H0238250 B2 JPH0238250 B2 JP H0238250B2
Authority
JP
Japan
Prior art keywords
membrane
heterogeneous
film
stretching
pores
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP58069900A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59196706A (ja
Inventor
Takanori Anazawa
Yoshuki Ono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP58069900A priority Critical patent/JPS59196706A/ja
Priority to DE8484104417T priority patent/DE3481587D1/de
Priority to EP84104417A priority patent/EP0124028B1/en
Publication of JPS59196706A publication Critical patent/JPS59196706A/ja
Priority to US06/793,733 priority patent/US4664681A/en
Publication of JPH0238250B2 publication Critical patent/JPH0238250B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • B29C55/065—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed in several stretching steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2975—Tubular or cellular

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
JP58069900A 1983-04-22 1983-04-22 不均質膜およびその製造方法 Granted JPS59196706A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP58069900A JPS59196706A (ja) 1983-04-22 1983-04-22 不均質膜およびその製造方法
DE8484104417T DE3481587D1 (de) 1983-04-22 1984-04-18 Heterogene membran und verfahren zu ihrer herstellung.
EP84104417A EP0124028B1 (en) 1983-04-22 1984-04-18 Heterogeneous membrane and process for production thereof
US06/793,733 US4664681A (en) 1983-04-22 1985-11-01 Heterogeneous membrane and process for production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58069900A JPS59196706A (ja) 1983-04-22 1983-04-22 不均質膜およびその製造方法

Publications (2)

Publication Number Publication Date
JPS59196706A JPS59196706A (ja) 1984-11-08
JPH0238250B2 true JPH0238250B2 (enrdf_load_stackoverflow) 1990-08-29

Family

ID=13416034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58069900A Granted JPS59196706A (ja) 1983-04-22 1983-04-22 不均質膜およびその製造方法

Country Status (4)

Country Link
US (1) US4664681A (enrdf_load_stackoverflow)
EP (1) EP0124028B1 (enrdf_load_stackoverflow)
JP (1) JPS59196706A (enrdf_load_stackoverflow)
DE (1) DE3481587D1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017112900A (ja) * 2015-12-24 2017-06-29 Dic株式会社 天然色素含有飲料およびその製造方法
WO2017110781A1 (ja) * 2015-12-24 2017-06-29 Dic株式会社 飲料およびその製造方法

Families Citing this family (87)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60161703A (ja) * 1984-01-30 1985-08-23 Teijin Ltd 気体選択透過膜複合体
JPS621404A (ja) * 1985-06-27 1987-01-07 Mitsubishi Rayon Co Ltd 多層複合中空繊維状膜及びその製造法
US4767422A (en) * 1987-04-08 1988-08-30 Union Carbide Corporation Composite separation membranes and the preparation and use thereof
JP2512937B2 (ja) * 1987-04-15 1996-07-03 大日本インキ化学工業株式会社 膜型気液接触装置
US5192320A (en) * 1987-07-11 1993-03-09 Dainippon Ink And Chemicals Inc. Artificial lung and method of using it
US4881954A (en) * 1987-07-31 1989-11-21 Union Carbide Corporation Permeable membranes for enhanced gas separation
US4990165A (en) * 1987-07-31 1991-02-05 Union Carbide Industrial Gases Technology Corporation Permeable membranes for enhanced gas separation
US4838904A (en) * 1987-12-07 1989-06-13 The Dow Chemical Company Semi-permeable membranes with an internal discriminating region
US5045357A (en) * 1987-12-09 1991-09-03 Mitsubishi Rayon Company, Ltd. Process for preparing a membranous gas separator
US4871378A (en) * 1987-12-11 1989-10-03 Membrane Technology & Research, Inc. Ultrathin ethylcellulose/poly(4-methylpentene-1) permselective membranes
US4919856A (en) * 1988-02-23 1990-04-24 Dainippon Ink And Chemicals, Inc. Process for producing membranes for use in gas separation
US4909971A (en) * 1988-03-25 1990-03-20 Du Pont Canada Inc. Process for making a heterogeneous membrane film
US5227101A (en) * 1988-03-31 1993-07-13 The Dow Chemical Company Process of making microporous membranes from poly(etheretherketone)-type polymers and low melting point crystallizable polymers
US5200078A (en) * 1988-03-31 1993-04-06 The Dow Chemical Company Microporous membranes from poly(etheretherketone)-type polymers
US5064580A (en) * 1988-03-31 1991-11-12 The Dow Chemical Company Process for making microporous membranes from poly(etheretherketone)-type polymers
US5205968A (en) * 1988-03-31 1993-04-27 The Dow Chemical Company Process for making a microporous membrane from a blend containing a poly(etheretherketone)-type polymer, an amorphous polymer, and a solvent
US4828588A (en) * 1988-04-01 1989-05-09 University Of Cincinnati Process for preparation of heterogeneous polysiloxane membrane and membrane produced
US5013439A (en) * 1988-05-12 1991-05-07 Hoechst Celanese Corporation Microporous membranes having increased pore densities and process for making the same
JPH0638894B2 (ja) * 1988-06-09 1994-05-25 東レ株式会社 逆浸透分離膜処理装置
US5073175A (en) * 1988-08-09 1991-12-17 Air Products And Chemicals, Inc. Fluorooxidized polymeric membranes for gas separation and process for preparing them
US4980101A (en) * 1989-07-14 1990-12-25 The Dow Chemical Company Anisotropic microporous syndiotactic polystyrene membranes and a process for preparing the same
US5015275A (en) * 1989-07-14 1991-05-14 The Dow Chemical Company Isotropic microporous syndiotactic polystyrene membranes and processes for preparing the same
US5152898A (en) * 1989-10-23 1992-10-06 Texaco Inc. Separation of organic oxygenates
US5096586A (en) * 1990-08-28 1992-03-17 Regents Of The University Of California Membranes having selective permeability
DE4037817A1 (de) * 1990-11-28 1992-06-04 Akzo Gmbh Gasmembrankapillarherstellung
JPH0790568B2 (ja) * 1991-05-27 1995-10-04 清二 加川 長尺多孔質有機系フィルムの製造方法
AU649827B2 (en) * 1991-02-28 1994-06-02 Seiji Kagawa Porous film, method for manufacturing the same, gas permeability control film, and water vapor permeability control film
CA2149806A1 (en) * 1994-05-20 1995-11-21 William John Koros Polymeric membrane
TW345540B (en) 1994-08-31 1998-11-21 Nike Inc Laminated resilient flexible barrier membranes (1)
US5952065A (en) * 1994-08-31 1999-09-14 Nike, Inc. Cushioning device with improved flexible barrier membrane
AU712542B2 (en) 1995-06-07 1999-11-11 Nike Ihm, Inc. Membranes of polyurethane based materials including polyester polyols
US6599597B1 (en) 1995-06-07 2003-07-29 Nike, Inc. Barrier membranes including a barrier layer employing aliphatic thermoplastic urethanes
US6013340A (en) 1995-06-07 2000-01-11 Nike, Inc. Membranes of polyurethane based materials including polyester polyols
JPH10324502A (ja) * 1997-05-21 1998-12-08 Dainippon Ink & Chem Inc 超純水の炭酸ガス付加装置及び付加方法
KR100567153B1 (ko) * 1997-07-23 2006-04-04 멤브라나 게엠베하 가스 운반용 일체형 비대칭성 폴리올레핀 멤브레인 및 이의 제조방법
US6497752B1 (en) * 1999-01-21 2002-12-24 Membrana Gmbh Integrally asymmetrical polyolefin membrane
US6432586B1 (en) 2000-04-10 2002-08-13 Celgard Inc. Separator for a high energy rechargeable lithium battery
US6884359B2 (en) 2000-09-27 2005-04-26 Dainippon Ink And Chemicals, Inc. Apparatus and method for controlling resistivity of ultra pure water
JP2002253940A (ja) * 2001-03-05 2002-09-10 Mitsubishi Rayon Co Ltd 中空糸膜の製造方法
US6558450B2 (en) 2001-03-22 2003-05-06 Celgard Inc. Method for debubbling an ink
US6616841B2 (en) * 2001-06-21 2003-09-09 Celgard Inc. Hollow fiber membrane contactor
CA2365817A1 (en) * 2001-12-11 2003-06-11 Pierre Cote Methods of making stretched filtering membranes and membrane modules
CZ2002184A3 (cs) * 2002-01-16 2003-09-17 Eidos, S. R. O. Mikroporézní membránová dutá vlákna s podélně proměnnými mechanickými a filtračními vlastnostmi a způsob jejich přípravy
DE50304738D1 (de) * 2002-01-24 2006-10-05 Membrana Gmbh Verfahren zur herstellung von polyolefinmembranen mit integral asymmetrischer struktur
WO2005016826A2 (en) * 2003-08-18 2005-02-24 Zenon Environmental Inc. Supported biofilm apparatus and process
US7294259B2 (en) * 2003-02-13 2007-11-13 Zenon Technology Partnership Membrane module for gas transfer
US7303676B2 (en) * 2003-02-13 2007-12-04 Zenon Technology Partnership Supported biofilm apparatus and process
US7175763B2 (en) * 2003-02-13 2007-02-13 Zenon Technology Partnership Membrane supported biofilm process for autotrophic reduction
EP1594807B1 (en) * 2003-02-13 2012-09-19 Zenon Technology Partnership Supported biofilm process
CN100361907C (zh) * 2003-02-13 2008-01-16 泽农技术合伙公司 受支撑的生物薄膜设备和反应器及处理液体方法
US7300571B2 (en) * 2003-02-13 2007-11-27 Zenon Technology Partnership Supported biofilm apparatus
US7264725B2 (en) * 2004-03-04 2007-09-04 Celgard Inc. Hollow fiber membrane contactor and method of making same
US20050202306A1 (en) * 2004-03-11 2005-09-15 Celgard Inc. Direct methanol fuel cell
US7638049B2 (en) * 2004-03-30 2009-12-29 Celgard Inc. Three-port high performance mini hollow fiber membrane contactor
USD538749S1 (en) 2004-04-09 2007-03-20 Celgard Inc. Three-port high performance mini hollow fiber membrane contactor
US8205977B2 (en) * 2005-11-30 2012-06-26 Konica Minolta Holdings, Inc. Degassing method of ink-jet ink, production method of ink-jet ink and ink-jet printer
CN101448563B (zh) * 2006-05-18 2013-01-23 玛里琳·雷纳 制造膜的方法及用于乳化的膜
HUE052058T2 (hu) 2007-04-20 2021-04-28 Zenon Tech Partnership Membrán által tartott biofilm berendezés és eljárás
US8908129B2 (en) * 2007-12-28 2014-12-09 Sabic Global Technologies B.V. Reflective polymeric article and manufacture
US8440732B2 (en) * 2008-03-25 2013-05-14 Sabic Innovative Plastics Ip B.V. Polymeric foams with nanocellular morphology and methods for making them
ES2373251T3 (es) 2008-12-12 2012-02-01 Membrana Gmbh Membrana hidrófoba de pvdf estable frente al ozono, con elevada estabilidad mecánica.
WO2010108285A1 (en) 2009-03-26 2010-09-30 Asteia Technology Inc. Non-braided reinforced hollow fibre membrane
KR101394622B1 (ko) * 2009-04-06 2014-05-20 에스케이이노베이션 주식회사 물성과 고온 안정성이 우수한 폴리올레핀계 다층 미세다공막
CN102458622B (zh) 2009-06-19 2015-04-01 东丽电池隔膜株式会社 微孔膜、所述膜的制备方法以及所述膜作为电池隔膜的用途
US9203071B2 (en) 2009-06-19 2015-12-01 Toray Battery Separator Film Co., Ltd. Multi-layer microporous film
ES2521440T3 (es) 2009-06-26 2014-11-12 Bl Technologies, Inc. Membrana de fibra hueca no trenzada reforzada con textiles
EP2412426A1 (de) * 2010-07-30 2012-02-01 Schaefer Kalk GmbH & Co. KG Poröse Hohlfaser
BR112013004171A2 (pt) 2010-09-15 2016-05-10 Bl Technologies Inc processo para a fabricação de um membrana de fibra oca reforçada e conjunto precursor
JPWO2012043613A1 (ja) * 2010-09-29 2014-02-24 三菱レイヨン株式会社 ポリオレフィン複合中空糸膜及びその製造方法、並びに中空糸膜モジュール
US8529814B2 (en) 2010-12-15 2013-09-10 General Electric Company Supported hollow fiber membrane
JP5961943B2 (ja) * 2011-08-17 2016-08-03 東レ株式会社 ポリアセタールを主成分とする多孔質中空糸膜およびその製造方法
US9321014B2 (en) 2011-12-16 2016-04-26 Bl Technologies, Inc. Hollow fiber membrane with compatible reinforcements
US9643129B2 (en) 2011-12-22 2017-05-09 Bl Technologies, Inc. Non-braided, textile-reinforced hollow fiber membrane
US9022229B2 (en) 2012-03-09 2015-05-05 General Electric Company Composite membrane with compatible support filaments
US8999454B2 (en) 2012-03-22 2015-04-07 General Electric Company Device and process for producing a reinforced hollow fibre membrane
US9227362B2 (en) 2012-08-23 2016-01-05 General Electric Company Braid welding
KR20240097948A (ko) 2013-02-22 2024-06-27 비엘 테크놀러지스 인크. 바이오필름 지지용 맴브레인 조립체
US9987600B2 (en) * 2013-04-01 2018-06-05 Generon Igs, Inc. Method for making gas-separation membranes having improved flux and selectivity
BR112016021096A2 (pt) * 2014-03-13 2017-08-15 3M Innovative Properties Company Membranas assimétricas e métodos relacionados
AU2015231819B2 (en) 2014-03-20 2019-05-16 Bl Technologies, Inc. Wastewater treatment with primary treatment and MBR or MABR-IFAS reactor
JP6262596B2 (ja) * 2014-05-07 2018-01-17 三菱エンジニアリングプラスチックス株式会社 ガス分離体及びその製造方法
DE102014118130A1 (de) 2014-12-08 2016-06-09 Technische Universität Berlin Fluidverteileinrichtung für einen Gas-Flüssigkeits-Kontaktor, Gas-Flüssigkeits-Kontaktor und Verfahren zum Versetzen einer Flüssigkeit mit einem Gas
EP3238943B1 (en) * 2014-12-24 2025-06-18 DIC Corporation Hollow-fiber degassing module and inkjet printer
CN109575538B (zh) * 2017-09-29 2023-04-07 东丽先端材料研究开发（中国）有限公司 一种微多孔取向聚乳酸薄膜
EP3902623A4 (en) * 2018-12-27 2022-09-21 3M Innovative Properties Company Hollow fiber membranes with nucleating agent and methods of making and using the same
US11883777B2 (en) 2018-12-27 2024-01-30 3M Innovative Properties Company Asymmetric hollow fiber membranes and methods of making and using the same
TW202446473A (zh) * 2023-04-05 2024-12-01 日商東麗股份有限公司 分離膜、分離膜模組、氣體分離方法、氣體分離裝置、及分離膜之製造方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA878608A (en) * 1971-08-17 S. Bierenbaum Harvey Microporous films
NL271831A (enrdf_load_stackoverflow) * 1960-11-29
US3677881A (en) * 1967-05-15 1972-07-18 Chemcell Ltd Open celled polypropylene filament of improved uniformity
JPS5215627A (en) * 1975-07-09 1977-02-05 Mitsubishi Rayon Co Ltd Porous polypropylene hollow fibers and a process for manufacturing the m
US4020230A (en) * 1975-10-03 1977-04-26 The Dow Chemical Company Microporous polyethylene hollow fibers and process of preparing them
JPS5456985A (en) * 1977-10-14 1979-05-08 Mitsubishi Chem Ind Ltd Gas-separaing membrane
JPS551816A (en) * 1978-06-15 1980-01-09 Mitsubishi Rayon Co Ltd Vapor-liquid contactor
DE2935097A1 (de) * 1978-09-07 1980-03-20 Kuraray Co Aethylen/vinylalkohol-copolymermembran
ZA80465B (en) * 1979-02-13 1981-08-26 Celanese Corp Process for preparing hollow microporous polypropylene fibers
EP0021422B1 (en) * 1979-06-25 1984-01-11 Kabushiki Kaisha Toyota Chuo Kenkyusho Gas separating member
JPS5652123A (en) * 1979-09-28 1981-05-11 Hitachi Ltd Crop disposal from shearing machine
JPS5656202A (en) * 1979-10-15 1981-05-18 Asahi Chem Ind Co Ltd Hollow porous membrane yarn made of polyvinylidene fluoride type resin
JPS5766114A (en) * 1980-10-14 1982-04-22 Mitsubishi Rayon Co Ltd Porous polyethylene hollow fiber and its production
US4405688A (en) * 1982-02-18 1983-09-20 Celanese Corporation Microporous hollow fiber and process and apparatus for preparing such fiber
US4421529A (en) * 1982-07-02 1983-12-20 The Dow Chemical Company Membrane system for intermittent gas separation
US4486202A (en) * 1983-06-30 1984-12-04 Monsanto Company Asymmetric gas separation membranes
US4472175A (en) * 1983-06-30 1984-09-18 Monsanto Company Asymmetric gas separation membranes
US4527999A (en) * 1984-03-23 1985-07-09 Abcor, Inc. Separation membrane and method of preparing and using same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017112900A (ja) * 2015-12-24 2017-06-29 Dic株式会社 天然色素含有飲料およびその製造方法
WO2017110781A1 (ja) * 2015-12-24 2017-06-29 Dic株式会社 飲料およびその製造方法
JPWO2017110781A1 (ja) * 2015-12-24 2018-08-09 Dic株式会社 飲料およびその製造方法

Also Published As

Publication number Publication date
EP0124028A3 (en) 1987-07-29
EP0124028B1 (en) 1990-03-14
DE3481587D1 (de) 1990-04-19
JPS59196706A (ja) 1984-11-08
US4664681A (en) 1987-05-12
EP0124028A2 (en) 1984-11-07

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